﻿using System;
using System.Collections.Generic;
using System.Text;

namespace ConsoleApp1
{
    class Swallow : BirdType
    {
        public void FlyToSouth()
        {
            Console.WriteLine("我能往南飞");
        }

        public override void Cry()
        {
            base.Cry();
            Console.WriteLine("啾啾啾");
        }
    }
}
